Uticaj rastućih doza azota na prinos i sadržaj proteina jarog pivskog ječma / The effect of increasing nitrogen amounts on yield and protein content of spring malting barley
2013
Šilj, Milana (Poljoprivredni fakultet, Istočno Sarajevo (Bosna i Hercegovina)) | Jovović, Zoran (Biotehnički fakultet, Podgorica (Crna Gora)) | Milić, Vesna (Poljoprivredni fakultet, Istočno Sarajevo (Bosna i Hercegovina)) | Ćota, Josip (Federalni zavod za poljoprivredu, Sarajevo (Bosna i Hercegovina))
The study of the effect of mineral nutrition on yield and protein content of spring malting barley was conducted in the near Kolasin city, Montenegro, on the alluvial-diluvial soil, at an altitude of 954 m. The Research was conducted in 2010. The experiment was set as double-factorial and two factors were studied: cultivar (Dinarac and Buskat) and fertilization (control and three variants of mineral nutrition with nitrogen amount: K, 40, 60 and 80 kg/ha).A cultivar Dinarac made the highest yield in a trial, with nitrogen level of 80 kg/ha (5.4 t/ha). Buskat , as an autochthonous cultivar, had a maximum yield of the trial fertilized with 60 kg nitrogen amount per hectare (5.0 t/ha), while yield stagnated with a further increase in nitrogen. On average for both cultivars, the highest yield in the experiment was achieved by applying the amount of 60 kg/ha of nitrogen (4.9 t/ha). As for the protein content, the cultivars studied differed significantly: Dinarac - 10.25% and Buskat – 12.08%. A nitrogen nutrition, too, had a significant effect on increase of protein content in barley grain. The highest protein content was found in plants fertilized with the amount of 60 kg/ha of nitrogen – 11.66%, and the lowest in the control variant – 10.45%. The average protein content in the experiment was 11.16% which is very acceptable in terms of the brewing industry, and what is essentially a superior quality.
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